Characterization of Multilayer Nano-coating of Piston Ring

Nano-structured coatings can be used to reduce surface roughness, improved hardness and to
protect against wear of the components. In this, research article the AISI 440C Stainless Steel is considered
for coating Nano-particles and different materials such as Nickel, Titanium dioxide and Aluminium dioxide.
The deposition of Nano-particles on piston ring by physical vapor deposition (PVD) process namely
Electron Beam physical vapor deposition (EB-PVD). The surface morphology and crystallographic texture
of the coatings were analyzed by means of the non-contact surface measurement device and XRD.
Mechanical properties of the coated substrate namely hardness, friction and wear resistance are evaluated
using micro-Vickers hardness and pin on disc test equipment. A major part of the power produced by the
engine lost in overcoming friction between the reciprocating parts. Heat lost to the surroundings is a major
factor reducing engine efficiency. Nano-coating can be used to reduce the surface roughness of the engine
components and to act as a protective coating against friction and wear of the components. The comparison
of tribological related properties of the coated material with uncoated AISI440C piston ring material
revealed improved hardness and better wears resistance. Also, this paper deals with the deposition Nanocoating on AISI440 C SS piston ring material and further the characterization of nano-coating are carried
out through Noncontact surface roughness, XRD, Micro-Vickers hardness and pin on disc tribometer test.
Finally, the best coating material are identified for reducing the friction and wear and thereby increasing the
performance of piston ring, these experimental results are validated with numerical results.